14．I have had some bad times before, but seldom_______so helpless as now.
| A．I had felt | B．have I felt | C．I have felt | D．had I felt |
All those second-hand goods are sold at before.
| A．30% as lower price as | B．as 30% low price as |
| C．30% as low a price as | D．30% lower price than |
It was in the small house was destroyed by the flood he spent his childhood.
| A．which; that | B．that; where | C．which; which | D．that; which |
The weather of this year is not so good as of last year.
| A．one | B．the one | C．that | D．those |
Every means, but none proved.
| A．have tried; a success | B．have been tried; successful |
| C．has tried; to be successful | D．has been tried; successful |
It’s quite honor to be chairman of the conference.
| A．///; the | B．an ; /// | C．a ; /// | D．the; the |